National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

John Glenn Columbus International Airport (KCMH)

Lat: 39.99°NLon: 82.88°WElev: 807ft.

Overcast

53°F

12°C

Humidity 59%
Wind Speed NE 9 mph
Barometer 30.24 in (1024.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 21 May 8:51 am EDT
Extended Forecast for

Johnstown OH

  • Today

    Today: Partly sunny, with a high near 67. Northeast wind around 11 mph, with gusts as high as 21 mph.

    High: 67 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 52. Northeast wind around 9 mph.

    Low: 52 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. East wind 10 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 58. East wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 58 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 75. Southeast wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 75 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Memorial Day

    Memorial Day: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 67. Northeast wind around 11 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 52. Northeast wind around 9 mph.
Friday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 70. East wind 10 to 13 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 58. East wind around 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday
Showers and possibly a thunderstorm before 8am, then showers between 8am and 11am, then showers and possibly a thunderstorm after 11am. High near 75. Southeast wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Memorial Day
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown OH
 40.16°N 82.69°W (Elev. 1112 ft)
Last Update:
6:41 am EDT May 21, 2026
Forecast Valid:
8am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation